Side-by-side report
Retinol Fillers and Other Wrinkle Treatments
Retinol and fillers share one headline, and they are not interchangeable.
This guide lines up the options Cleveland Clinic groups under treatments to reduce wrinkles. It marks where a common claim goes further than the source. Its guide to those treatments is the main reference.
Fillers and wrinkles at rest
Cleveland Clinic says wrinkles that remain at rest may require filler to fill in or lift skin with deep wrinkles. That gives filler a specific job: wrinkles that stay visible when the face is still.
Retinol on the same list
The source puts retinol and fillers in one title, but the sentence above ties filler to deep wrinkles at rest. It does not say retinol fills or lifts. A product promising to fill or lift deep wrinkles without a filler makes a claim that sentence does not support.

An overview of wrinkle remedies gives a second description to check the same points against.
Where claims run past the source
"May require" is cautious wording. A promise that filler will fix every wrinkle goes further than the word "may." The same goes for any claim that one option replaces the others on the list.
A plain verdict on this list
According to the source, deep wrinkles at rest are where filler enters the picture. Match the option to the wrinkle with a provider, and read the page on wrinkles for the condition itself.